I have a Dell 4550 and normally run Win XP. When I boot to the Knoppix CD I have no problems. However, after shuting down and removing the CD, my computer won't boot. The problem is that during the reboot/self-diagnostic phase, the computer hangs when checking the memory (a single 512 Mb DIMM). To fix the problem I remove and reinsert. Voila. This has happened both times I booted to the Knoppix CD.

Am I doing something wrong? How can I keep this from happening?

Thanks.